Stacked Line Chart?

I hope I'm missing something simple, but I've not found a way of creating a stacked line chart to allow 4 values of the same dimension to be displayed across a single X-Axis.

This is what I got with Lumira - each dimension with its own X-Axis, with the Payment Type as a trellis column.

Having the same dimension as a Row on the trellis comes closer, but it's still 4 separate charts, rather than 1 combined.

This is what I wanted, done with Excel.

Is this existing functionality that I can't find, or is it a new requirement?

Thanks

Astrid